macOS Distribute App with 32 bit mode pre-selected

[pauljwells]

I'm writing an App using python with a GUI in wxpython (for cross-platform compatibility) and packaging using py2app. It has to have the 'Open in 32-bit mode' checkbox checked (in the 'get info' dialogue) in order to run.

Where is this flag actually stored? I can't find any preference file that registers it.

I want to be able to distribute the app with this option already checked instead of having to instruct the user to do it.

Anybody know? Many thanks in advance!

 

[Eraserhead]

I guess you just need to only compile against the 32-bit version of Python.

But to be honest at this point you should be coding 64-bit safe so it shouldn't matter.

 

[robbieduncan]

Have a look at the LSArchitecturePriority info.plist key.

 

[pauljwells]

I guess you just need to only compile against the 32-bit version of Python.

But to be honest at this point you should be coding 64-bit safe so it shouldn't matter.

Thanks! I just ran the setup.py in python2.5 and this makes the app 32-bit only, so it fixes the problem.

The program is a lot of number crunching in python (because of the availability of lots of libraries that already do most of what I need, and execution time isn't a problem) and the GUI is just a few buttons and text fields, nothing fancy. So using wx lets me distribute on mac, windows or linux. Wx is a carbon library so this is what forces the 32-bitness...

 

[pauljwells]

Have a look at the LSArchitecturePriority info.plist key.

Thanks! This is what I was actually looking for, even though the earlier poster's suggestion circumvented the issue more easily.

Thanks everyone!